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flightgear/src/GUI/gui_funcs.cxx
James Turner f2a3090384 Fix some Clang warnings.
2014-03-11 16:46:00 +00:00

660 lines
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/**************************************************************************
* gui_funcs.cxx
*
* Based on gui.cxx and renamed on 2002/08/13 by Erik Hofman.
*
* Written 1998 by Durk Talsma, started Juni, 1998. For the flight gear
* project.
*
* Additional mouse supported added by David Megginson, 1999.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#include <simgear/compiler.h>
#include <fstream>
#include <string>
#include <cstring>
#include <sstream>
#include <stdlib.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/screen/screen-dump.hxx>
#include <simgear/structure/event_mgr.hxx>
#include <simgear/props/props_io.hxx>
#include <Cockpit/panel.hxx>
#include <Main/globals.hxx>
#include <Main/fg_props.hxx>
#include <Main/fg_os.hxx>
#include <Viewer/renderer.hxx>
#include <Viewer/viewmgr.hxx>
#include <Viewer/WindowSystemAdapter.hxx>
#include <Viewer/CameraGroup.hxx>
#include <GUI/new_gui.hxx>
#ifdef _WIN32
# include <shellapi.h>
#endif
#if defined(SG_MAC)
# include <GUI/CocoaHelpers.h> // for cocoaOpenUrl
#endif
#include "gui.h"
using std::string;
#if defined( TR_HIRES_SNAP)
#include <simgear/screen/tr.h>
extern void fgUpdateHUD( GLfloat x_start, GLfloat y_start,
GLfloat x_end, GLfloat y_end );
#endif
const __fg_gui_fn_t __fg_gui_fn[] = {
#ifdef TR_HIRES_SNAP
{"dumpHiResSnapShot", fgHiResDumpWrapper},
#endif
{"dumpSnapShot", fgDumpSnapShotWrapper},
// Help
{"helpCb", helpCb},
// Structure termination
{"", NULL}
};
/* ================ General Purpose Functions ================ */
// General Purpose Message Box. Makes sure no more than 5 different
// messages are displayed at the same time, and none of them are
// duplicates. (5 is a *lot*, but this will hardly ever be reached
// and we don't want to miss any, either.)
void mkDialog (const char *txt)
{
NewGUI *gui = (NewGUI *)globals->get_subsystem("gui");
if (!gui)
return;
SGPropertyNode *master = gui->getDialogProperties("message");
if (!master)
return;
const int maxdialogs = 5;
string name;
SGPropertyNode *msg = fgGetNode("/sim/gui/dialogs", true);
int i;
for (i = 0; i < maxdialogs; i++) {
std::ostringstream s;
s << "message-" << i;
name = s.str();
if (!msg->getNode(name.c_str(), false))
break;
if (!strcmp(txt, msg->getNode(name.c_str())->getStringValue("message"))) {
SG_LOG(SG_GENERAL, SG_WARN, "mkDialog(): duplicate of message " << txt);
return;
}
}
if (i == maxdialogs)
return;
msg = msg->getNode(name.c_str(), true);
msg->setStringValue("message", txt);
msg = msg->getNode("dialog", true);
copyProperties(master, msg);
msg->setStringValue("name", name.c_str());
gui->newDialog(msg);
gui->showDialog(name.c_str());
}
// Message Box to report an error.
void guiErrorMessage (const char *txt)
{
SG_LOG(SG_GENERAL, SG_ALERT, txt);
mkDialog(txt);
}
// Message Box to report a throwable (usually an exception).
void guiErrorMessage (const char *txt, const sg_throwable &throwable)
{
string msg = txt;
msg += '\n';
msg += throwable.getFormattedMessage();
if (std::strlen(throwable.getOrigin()) != 0) {
msg += "\n (reported by ";
msg += throwable.getOrigin();
msg += ')';
}
SG_LOG(SG_GENERAL, SG_ALERT, msg);
mkDialog(msg.c_str());
}
/* -----------------------------------------------------------------------
the Gui callback functions
____________________________________________________________________*/
void helpCb()
{
openBrowser( "Docs/index.html" );
}
bool openBrowser(const std::string& aAddress)
{
bool ok = true;
string address(aAddress);
// do not resolve addresses with given protocol, i.e. "http://...", "ftp://..."
if (address.find("://")==string::npos)
{
// resolve local file path
SGPath path(address);
path = globals->resolve_maybe_aircraft_path(address);
if (!path.isNull())
address = path.str();
else
{
mkDialog ("Sorry, file not found!");
SG_LOG(SG_GENERAL, SG_ALERT, "openBrowser: Cannot find requested file '"
<< address << "'.");
return false;
}
}
#ifdef SG_MAC
if (address.find("://")==string::npos) {
address = "file://" + address;
}
cocoaOpenUrl(address);
#elif defined _WIN32
// Look for favorite browser
char win32_name[1024];
# ifdef __CYGWIN__
cygwin32_conv_to_full_win32_path(address.c_str(),win32_name);
# else
strncpy(win32_name,address.c_str(), 1024);
# endif
ShellExecute ( NULL, "open", win32_name, NULL, NULL,
SW_SHOWNORMAL ) ;
#else
// Linux, BSD, SGI etc
string command = globals->get_browser();
string::size_type pos;
if ((pos = command.find("%u", 0)) != string::npos)
command.replace(pos, 2, address);
else
command += " \"" + address +"\"";
command += " &";
ok = (system( command.c_str() ) == 0);
#endif
mkDialog("The file is shown in your web browser window.");
return ok;
}
#if defined( TR_HIRES_SNAP)
void fgHiResDump()
{
FILE *f;
string message;
bool menu_status = fgGetBool("/sim/menubar/visibility");
char *filename = new char [24];
static int count = 1;
SGPropertyNode *master_freeze = fgGetNode("/sim/freeze/master");
bool freeze = master_freeze->getBoolValue();
if ( !freeze ) {
master_freeze->setBoolValue(true);
}
fgSetBool("/sim/menubar/visibility", false);
int mouse = fgGetMouseCursor();
fgSetMouseCursor(MOUSE_CURSOR_NONE);
FGRenderer *renderer = globals->get_renderer();
// renderer->init();
renderer->resize( fgGetInt("/sim/startup/xsize"),
fgGetInt("/sim/startup/ysize") );
// we need two render frames here to clear the menu and cursor
// ... not sure why but doing an extra fgRenderFrame() shouldn't
// hurt anything
//renderer->update( true );
//renderer->update( true );
// This ImageSize stuff is a temporary hack
// should probably use 128x128 tile size and
// support any image size
// This should be a requester to get multiplier from user
int multiplier = fgGetInt("/sim/startup/hires-multiplier", 3);
int width = fgGetInt("/sim/startup/xsize");
int height = fgGetInt("/sim/startup/ysize");
/* allocate buffer large enough to store one tile */
GLubyte *tile = (GLubyte *)malloc(width * height * 3 * sizeof(GLubyte));
if (!tile) {
delete [] filename;
printf("Malloc of tile buffer failed!\n");
return;
}
int imageWidth = multiplier*width;
int imageHeight = multiplier*height;
/* allocate buffer to hold a row of tiles */
GLubyte *buffer
= (GLubyte *)malloc(imageWidth * height * 3 * sizeof(GLubyte));
if (!buffer) {
delete [] filename;
free(tile);
printf("Malloc of tile row buffer failed!\n");
return;
}
TRcontext *tr = trNew();
trTileSize(tr, width, height, 0);
trTileBuffer(tr, GL_RGB, GL_UNSIGNED_BYTE, tile);
trImageSize(tr, imageWidth, imageHeight);
trRowOrder(tr, TR_TOP_TO_BOTTOM);
// OSGFIXME
// sgFrustum *frustum = ssgGetFrustum();
// trFrustum(tr,
// frustum->getLeft(), frustum->getRight(),
// frustum->getBot(), frustum->getTop(),
// frustum->getNear(), frustum->getFar());
/* Prepare ppm output file */
while (count < 1000) {
snprintf(filename, 24, "fgfs-screen-%03d.ppm", count++);
if ( (f = fopen(filename, "r")) == NULL )
break;
fclose(f);
}
f = fopen(filename, "wb");
if (!f) {
printf("Couldn't open image file: %s\n", filename);
delete [] filename;
free(buffer);
free(tile);
return;
}
fprintf(f,"P6\n");
fprintf(f,"# ppm-file created by %s\n", "trdemo2");
fprintf(f,"%i %i\n", imageWidth, imageHeight);
fprintf(f,"255\n");
/* just to be safe... */
glPixelStorei(GL_PACK_ALIGNMENT, 1);
// OSGFIXME
#if 0
/* Because the HUD and Panel change the ViewPort we will
* need to handle some lowlevel stuff ourselves */
int ncols = trGet(tr, TR_COLUMNS);
int nrows = trGet(tr, TR_ROWS);
bool do_hud = fgGetBool("/sim/hud/visibility");
GLfloat hud_col_step = 640.0 / ncols;
GLfloat hud_row_step = 480.0 / nrows;
bool do_panel = fgPanelVisible();
GLfloat panel_col_step = globals->get_current_panel()->getWidth() / ncols;
GLfloat panel_row_step = globals->get_current_panel()->getHeight() / nrows;
#endif
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
glHint(GL_FOG_HINT, GL_NICEST);
/* Draw tiles */
int more = 1;
while (more) {
trBeginTile(tr);
int curColumn = trGet(tr, TR_CURRENT_COLUMN);
// int curRow = trGet(tr, TR_CURRENT_ROW);
renderer->update();
// OSGFIXME
// if ( do_hud )
// fgUpdateHUD( curColumn*hud_col_step, curRow*hud_row_step,
// (curColumn+1)*hud_col_step, (curRow+1)*hud_row_step );
// OSGFIXME
// if (do_panel)
// globals->get_current_panel()->update(
// curColumn*panel_col_step, panel_col_step,
// curRow*panel_row_step, panel_row_step );
more = trEndTile(tr);
/* save tile into tile row buffer*/
int curTileWidth = trGet(tr, TR_CURRENT_TILE_WIDTH);
int bytesPerImageRow = imageWidth * 3*sizeof(GLubyte);
int bytesPerTileRow = (width) * 3*sizeof(GLubyte);
int xOffset = curColumn * bytesPerTileRow;
int bytesPerCurrentTileRow = (curTileWidth) * 3*sizeof(GLubyte);
int i;
for (i=0;i<height;i++) {
memcpy(buffer + i*bytesPerImageRow + xOffset, /* Dest */
tile + i*bytesPerTileRow, /* Src */
bytesPerCurrentTileRow); /* Byte count*/
}
if (curColumn == trGet(tr, TR_COLUMNS)-1) {
/* write this buffered row of tiles to the file */
int curTileHeight = trGet(tr, TR_CURRENT_TILE_HEIGHT);
int bytesPerImageRow = imageWidth * 3*sizeof(GLubyte);
int i;
for (i=0;i<curTileHeight;i++) {
/* Remember, OpenGL images are bottom to top. Have to reverse. */
GLubyte *rowPtr = buffer + (curTileHeight-1-i) * bytesPerImageRow;
fwrite(rowPtr, 1, imageWidth*3, f);
}
}
}
renderer->resize( width, height );
trDelete(tr);
glHint(GL_POLYGON_SMOOTH_HINT, GL_DONT_CARE);
glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);
glHint(GL_POINT_SMOOTH_HINT, GL_DONT_CARE);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE);
if ( (!strcmp(fgGetString("/sim/rendering/fog"), "disabled")) ||
(!fgGetBool("/sim/rendering/shading"))) {
// if fastest fog requested, or if flat shading force fastest
glHint ( GL_FOG_HINT, GL_FASTEST );
} else if ( !strcmp(fgGetString("/sim/rendering/fog"), "nicest") ) {
glHint ( GL_FOG_HINT, GL_DONT_CARE );
}
fclose(f);
message = "Snapshot saved to \"";
message += filename;
message += "\".";
mkDialog (message.c_str());
free(tile);
free(buffer);
delete [] filename;
fgSetMouseCursor(mouse);
fgSetBool("/sim/menubar/visibility", menu_status);
if ( !freeze ) {
master_freeze->setBoolValue(false);
}
}
#endif // #if defined( TR_HIRES_SNAP)
void fgDumpSnapShotWrapper () {
fgDumpSnapShot();
}
void fgHiResDumpWrapper () {
fgHiResDump();
}
namespace
{
using namespace flightgear;
class GUISnapShotOperation :
public GraphicsContextOperation
{
public:
// start new snap shot
static bool start()
{
// allow only one snapshot at a time
if (_snapShotOp.valid())
return false;
_snapShotOp = new GUISnapShotOperation();
/* register with graphics context so actual snap shot is done
* in the graphics context (thread) */
osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
WindowSystemAdapter* wsa = WindowSystemAdapter::getWSA();
osg::GraphicsContext* gc = 0;
if (guiCamera)
gc = guiCamera->getGraphicsContext();
if (gc) {
gc->add(_snapShotOp.get());
} else {
wsa->windows[0]->gc->add(_snapShotOp.get());
}
return true;
}
private:
// constructor to be executed in main loop's thread
GUISnapShotOperation() :
flightgear::GraphicsContextOperation(std::string("GUI snap shot")),
_master_freeze(fgGetNode("/sim/freeze/master", true)),
_freeze(_master_freeze->getBoolValue()),
_result(false),
_mouse(fgGetMouseCursor())
{
if (!_freeze)
_master_freeze->setBoolValue(true);
fgSetMouseCursor(MOUSE_CURSOR_NONE);
string dir = fgGetString("/sim/paths/screenshot-dir");
if (dir.empty())
dir = SGPath::desktop().str();
_path.set(dir + '/');
if (_path.create_dir( 0755 )) {
SG_LOG(SG_GENERAL, SG_ALERT, "Cannot create screenshot directory '"
<< dir << "'. Trying home directory.");
dir = globals->get_fg_home();
}
char filename[24];
static int count = 1;
while (count < 1000) {
snprintf(filename, 24, "fgfs-screen-%03d.png", count++);
SGPath p(dir);
p.append(filename);
if (!p.exists()) {
_path.set(p.str());
break;
}
}
_xsize = fgGetInt("/sim/startup/xsize");
_ysize = fgGetInt("/sim/startup/ysize");
FGRenderer *renderer = globals->get_renderer();
renderer->resize(_xsize, _ysize);
globals->get_event_mgr()->addTask("SnapShotTimer",
this, &GUISnapShotOperation::timerExpired,
0.1, false);
}
// to be executed in graphics context (maybe separate thread)
void run(osg::GraphicsContext* gc)
{
_result = sg_glDumpWindow(_path.c_str(),
_xsize,
_ysize);
}
// timer method, to be executed in main loop's thread
virtual void timerExpired()
{
if (isFinished())
{
globals->get_event_mgr()->removeTask("SnapShotTimer");
fgSetString("/sim/paths/screenshot-last", _path.c_str());
fgSetBool("/sim/signals/screenshot", _result);
fgSetMouseCursor(_mouse);
if ( !_freeze )
_master_freeze->setBoolValue(false);
_snapShotOp = 0;
}
}
static osg::ref_ptr<GUISnapShotOperation> _snapShotOp;
SGPropertyNode_ptr _master_freeze;
bool _freeze;
bool _result;
int _mouse;
int _xsize, _ysize;
SGPath _path;
};
} // of anonymous namespace
osg::ref_ptr<GUISnapShotOperation> GUISnapShotOperation::_snapShotOp;
// do a screen snap shot
bool fgDumpSnapShot ()
{
// start snap shot operation, while needs to be executed in
// graphics context
return GUISnapShotOperation::start();
}
// do an entire scenegraph dump
void fgDumpSceneGraph()
{
char *filename = new char [24];
string message;
static int count = 1;
SGPropertyNode *master_freeze = fgGetNode("/sim/freeze/master");
bool freeze = master_freeze->getBoolValue();
if ( !freeze ) {
master_freeze->setBoolValue(true);
}
while (count < 1000) {
FILE *fp;
snprintf(filename, 24, "fgfs-graph-%03d.osg", count++);
if ( (fp = fopen(filename, "r")) == NULL )
break;
fclose(fp);
}
if ( fgDumpSceneGraphToFile(filename)) {
message = "Entire scene graph saved to \"";
message += filename;
message += "\".";
} else {
message = "Failed to save to \"";
message += filename;
message += "\".";
}
mkDialog (message.c_str());
delete [] filename;
if ( !freeze ) {
master_freeze->setBoolValue(false);
}
}
// do an terrain branch dump
void fgDumpTerrainBranch()
{
char *filename = new char [24];
string message;
static int count = 1;
SGPropertyNode *master_freeze = fgGetNode("/sim/freeze/master");
bool freeze = master_freeze->getBoolValue();
if ( !freeze ) {
master_freeze->setBoolValue(true);
}
while (count < 1000) {
FILE *fp;
snprintf(filename, 24, "fgfs-graph-%03d.osg", count++);
if ( (fp = fopen(filename, "r")) == NULL )
break;
fclose(fp);
}
if ( fgDumpTerrainBranchToFile(filename)) {
message = "Terrain graph saved to \"";
message += filename;
message += "\".";
} else {
message = "Failed to save to \"";
message += filename;
message += "\".";
}
mkDialog (message.c_str());
delete [] filename;
if ( !freeze ) {
master_freeze->setBoolValue(false);
}
}
void fgPrintVisibleSceneInfoCommand()
{
SGPropertyNode *master_freeze = fgGetNode("/sim/freeze/master");
bool freeze = master_freeze->getBoolValue();
if ( !freeze ) {
master_freeze->setBoolValue(true);
}
flightgear::printVisibleSceneInfo(globals->get_renderer());
if ( !freeze ) {
master_freeze->setBoolValue(false);
}
}
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